Regression analysis has produced the following results from the batch production costs for each of the past 5 months. x = 540, y = 755, Ex2 = 61,000, xy = 83,920 Which of the following is the appropriate value for b in the regression line to 2 decimal places? O a. 1.40 b. 0.01 C. 0.89 O d. -1.40 Clear my choice